Weakness (CWE)
CWE-122: Heap-based Buffer Overflow
The product writes past the end of a buffer that was allocated on the heap.
How to prevent it (7 mitigations)
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Pre-design: Use a language or compiler that performs automatic bounds checking.
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Architecture and Design
Use an abstraction library to abstract away risky APIs. Not a complete solution.
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Operation, Build and Compilation
Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
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Operation, Build and Compilation
Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
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Implementation
Implement and perform bounds checking on input.
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Implementation
Do not use dangerous functions such as gets. Look for their safe equivalent, which checks for the boundary.
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Operation
Use OS-level preventative functionality. This is not a complete solution, but it provides some defense in depth.
Source: MITRE CWE-122
4,078 results · Feed
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High 8.8
Microsoft Office Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
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High 8.8
Microsoft Office Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
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High 8.8
Microsoft Office Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
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High 8.8
Microsoft Office Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
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High 8.8
Microsoft Office Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
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High 8.8
Microsoft Office Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
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High 8.8
Microsoft Office Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
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High 8.8
Windows Raw Image Extension Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows Raw Image Extension allows an unauthorized attacker to execute code over a network.
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High 8.8
Microsoft Windows Media Foundation Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over a network.
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Medium 6.7
Windows Distributed File System (DFS) Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Distributed File System (DFS) allows an authorized attacker to elevate privileges locally.
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High 7.8
Windows Kernel Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
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High 7.8
Windows NTFS Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally.
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High 8.8
Windows Kernel Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
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Critical 9.8
Windows BitLocker Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows BitLocker allows an unauthorized attacker to execute code over a network.
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High 8.8
Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability
Integer overflow or wraparound in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.
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High 8.8
Windows PCI Bus Driver Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows PCI Bus Driver allows an authorized attacker to elevate privileges locally.
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High 7.8
WebDAV Elevation of Privilege Vulnerability
Heap-based buffer overflow in WebDAV allows an authorized attacker to elevate privileges locally.
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Critical 9.8
Windows DHCP Server Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code over a network.
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High 7.5
Microsoft Office PowerPoint Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.
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High 8.8
Microsoft MPEG-2 Video Extension Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft MPEG-2 Video Extension allows an unauthorized attacker to execute code over a network.
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High 8.8
Microsoft Office Word Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
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High 8.1
Microsoft Office Word Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
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High 8.8
Microsoft Office SharePoint Remote Code Execution Vulnerability
Integer overflow or wraparound in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
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Critical 9.8
Microsoft Office Outlook Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
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Critical 9.8
Microsoft PostScript Printer Driver Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft PostScript Printer Driver allows an unauthorized attacker to execute code over a network.
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High 7.8
Desktop Window Manager Elevation of Privilege Vulnerability
Heap-based buffer overflow in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
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High 7.8
Windows Network File System Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows Network File System allows an authorized attacker to execute code locally.
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High 7.8
Windows Spaceport.sys Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows Spaceport.sys allows an authorized attacker to execute code locally.
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High 7.8CVE-2026-70054 Public exploit
Windows NetBIOS Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows NetBIOS allows an authorized attacker to elevate privileges locally.
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High 7.8
Microsoft Scripting Engine Elevation of Privilege Vulnerability
Heap-based buffer overflow in Microsoft Scripting Engine allows an authorized attacker to elevate privileges locally.
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High 7.8
Windows Background Intelligent Transfer Service (BITS) Elevation of Privilege Vulnerability
Integer overflow or wraparound in Windows Background Intelligent Transfer Service (BITS) allows an authorized attacker to elevate privileges locally.
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High 7.8
Windows DWM Core Library Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
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High 7.8
Windows Secure Socket Tunneling Protocol (SSTP) Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Secure Socket Tunneling Protocol (SSTP) allows an authorized attacker to elevate privileges locally.
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High 8.8
Windows Background Intelligent Transfer Service (BITS) Remote Code Execution Vulnerability
Use after free in Windows Background Intelligent Transfer Service (BITS) allows an unauthorized attacker to execute code over a network.
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High 7.0
Windows Graphics Kernel Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Graphics Kernel allows an authorized attacker to elevate privileges locally.
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High 7.0
Reliable Multicast Transport Driver (RMCAST) Elevation of Privilege Vulnerability
Time-of-check time-of-use (toctou) race condition in Reliable Multicast Transport Driver (RMCAST) allows an authorized attacker to elevate privileges locally.
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High 7.8
Winlogon Elevation of Privilege Vulnerability
Heap-based buffer overflow in Winlogon allows an authorized attacker to elevate privileges locally.
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High 7.5
Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
Heap-based buffer overflow in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over an adjacent network.
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High 7.8
Windows Hyper-V Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.